A `100 Omega` resistor is connected to a 220 V, 50 Hz ac supply.
(a) What is the rms value of current in the circuit?
(b) What is the net power consumed over a full cycle?

Options

A. `1.56 A`
B. `1.56 mA`
C. `2.2 A`
D. `2.2 mA`

Answer

C

Explanation

Here, `R = 100 Omega V_("rms") = 220 V, upsilon = 50 Hz`
`therefore I_("rms")=(V_("rms"))/(R )=(220)/(100)=2.2A`